<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 10;
            padding: 10;
            /* box-sizing: border-box; */
        }
        .slide{
            width: 234px;
            height: 420px;
            background-color: #f0f0f0;
            padding: 20px 0;
            margin: 100px;
        }
        .slide ul{
            list-style: none;
            padding: 0;
        }
        .slide ul li{
            margin: 10px 0;
            padding: 10px;
            background-color: #fff;
            border-radius: 5px;
            box-sizing: border-box;
        }
        .slide ul li a{
            text-decoration: none;
            color: #333;
            font-weight: bold;
        }
        .slide ul li a:hover{
            background: #44ff00;
        }
        .slide ul li .list{
            display: none;
            width: 20px;
            height: 20px;
            background-color: #ac2626;
            border-radius: 50%;
            text-align: center;
            line-height: 20px;
            margin-left: 10px;
        }
        .slide ul li:hover .list{
            display: inline-block;
        }
    </style>
</head>
<body>
    <div class="slide">
        <ul>
            <li>
                <a href="#">Slide Title</a>
                <div class="list">1</div>
            </li>
            <li>
                <a href="#">Slide </a>
                <div class="list">2</div>
            </li>
        </ul>
    </div>
</body>
</html>